Fluorescent quantum dots are widely used in biological imaging due to their bright and stable fluorescence, allowing for precise tracking of cellular processes and molecules. They are also employed in medical diagnostics, where they enhance the sensitivity and accuracy of detecting biomarkers in diseases like cancer. In display technologies, quantum dots improve color quality and energy efficiency in screens, such as those in TVs and monitors. Additionally, they are utilized in solar cells to increase light absorption and conversion efficiency, enhancing overall performance. Their tunable optical properties make them valuable in research and development across various scientific fields.